Pump-operating mechanism



B. BRYNTESON. PUMP OPERATING MECHANISMf APPLlcAnoN FILED www. ma.

Mtente 0st. 21, 19,19.

'nm cnwmam mANnon/wn( ed.. WASHING-MN, une.;

Barnim Bmmfrnson, or onEBoL'r, Iowa.

PUMP-OPERATING MECHANISM.

Specification of Letters Patent.

Patented Oct. 21, 1919.

Application filed .T une 8, 1918. Serial No. 238,984.

To all whom t may concern Be it known that I, BnYN'rn BniNTnsoN.a'eitizen ot the United States, residing at debolt, in the county of Sacand State ot' Iowa, have invented certain new and use'ful Improvementsin Pump-Gperating lvIechanism7 ot which the following is a speciiication.

The invention'relates to a pump operating mechanism. The object of thepresent invention is to improve the construction of pumpoperatingmechanism and to provide a simple, practical and efficient pumpoperating mechanism of strong, durable and com paratively inexpensiveconstruction adapted to reciprocate positively the vertical pump rods orstocks ot' a double acting pump.

VJ ith these and other objects in view the invention consists in theconstruction and novel combination and arrangement ot partshereinaiitertnlly described, illustrated in the accompanying drawing,and pointed out in the claims hereto appended, it being understood'thatvarious changes in the torni, proportion, size and minor details ofconstruction, within the scope Y oit the appended claims may be resortedto without departing 'from the spirit or sacrilicing any ot theadvantages of the invention.

In the drawings:

Figure 1 is a front elevation of a pump operating mechanism constructedin accordance with this invention;

Fig. 2 is a transverse sectional viewof the same. Y

Fig. 3 is a detail view ot the Apump rod cushioning device.

Like numerals oil reference designato corresponding parts in the severalligures oit the drawin'.

In the accompanying drawing in which is illustrated the preferredembodiment of the invention, the pump operating mechanism comprises inits construction a pair ot'. vertical reciprocating` rods or stocks 1and 2 having upper and lower racks which are adapted to mesh with upperand lower prnions .41- and 5 which are located at opposite sides of thepump rods and which are alternately carried into engagement with thesame, the pinions at the right hand side ot the pump rod being adaptedto mesh with the racks `for moving the pump rods m. a downward directionand the pinions at the left hand side of the pump rods being adapted tomesh with the coacting racks te impart an upward movement to the pumprods. The upper pinions it coact with and actuate one pump rod and thelower set ot' pinions 5 reciprocate the other pump rod. The pinions 11and 5 are slidably mounted on and carried by upper and lower slidablesupports 6 and which are mounted upon upper and lower portions 8 and 9ot a main or supporting 'frame 10 which may be of any desiredconstruction and which may be also provided with any suitable means forguiding the supporting members 6 and 'T in their sliding movement togear the pinions alternately into engagement with the racks ot the pumprod.

The pinions are moved simultaneously to carry them into and out ofmeslrwith the said racks and with a master gear il, suitably mountedupon the main or supporting frame l0 Vby a shaft or axle 12 and meshingwith a driving gear 13, which-may be operated from Vany suitable sourceot power. Thefmaster gear is located between the'upper and lower'pinions-L and 5 and it simultaneously engages one of the pinions at the righthand side of the pump rods or stocks and one of the pinions at the lefthand side ot the same to move the pump rods in opposite directions.IVhen the right hand pinion is in mesh with the rack of one pump rod thelatter will be moved downwardly and when the left hand pinion is in meshwith the rack of the other pump rod the same will. be moved upwardly.

The upper .slidable support, which has a limited movement in eachdirection is locked against accidental movement by means o't dogs 15 and16 to maintain therupper pinions alternately in mesh with the mastergear and with the pump rod. The dog'15 which is pivoted or hinged at theouterV end as shownis adapted to drop into abutment with the adjacentend of the slidable support G when the latter is moved to the right, andit is urged downwardly by gravity and also by a spring 17 ot a trip oroperating rod 1S having its upper end arranged to lift the pawlor dog 15and .its lower end located in the path ot' eccentric-ally arrangedprojections 19 which are Vcarried by the master wheel 11. The operatingrod 1S is arranged in suitable guides 2O of a. bracket or block 2l ofthe main or supporting trame 10 and.

the lower end or portion Q2 ot the operating or trip rod 1S 1s inclined4tothe vertical and is adapted to'be engaged by the eccentricallyarranged lugs or projections 19 whereby when one of the projectionscomes in contact with the offset portion of the rod 18, the latter willbe lifted and will carry the pawl or dog upwardly out of abutment withtlief slidable support 6 and permit a coiled spring 23 to actuate thesaid support to carry the left hand pinion out of mesh and the righthand pinion into mesh. 'he spring 23 which is preferably of spiral formis interposed between a block 24 and an arm 25 which depends from thesupport 6'at'oiie end thereof. The spring 23Y tends to urge the suppoit6 in one dii'ectioii and the sai-C support is automatically movable tothe left and is actuated by the spring 23V when the pawl or dog 15 istripped and lifted out of abutting relation with the said support 6 bythe eccentric' projection 19.

The pawl or dog 16 automatically drops into abutment with lthe righthand end of the support 6 when the latter is moved to the left by thespring 23 and is adapted te be lifted out of such abutment by tripleverV 26 pivoted intermediate of its ends at 27 and having its upperarm arranged to lift the pawl or dog 16. The lower terminal portion 28ofthe operating or trip `guides 37 of a block or bracket 38.

lever 26 is arranged at an inclination to the vertical and is located inthe path of the eccentric projections 19 and is adapte'd to be engagedby the same and swing outwardly to disengage the right hand pawl or dogfrom the slidable support 6 to enable the said eccentric projection toengage the arm 25 of the said support 6 and move the latter to the rightagainst the action of the spring 23. This will operate Yto move theright hand pinion out of engagement with the master pump i'od and carrythe left hand pinion into engagement with the said parts.

The lower support 7 which is provided with an upwardly extending arm 29,is automatically -inoved to the right by a coiled spring 30 interposedbetween the said arm 29 Vand a block or piece 31 secured'to Vthe main orsupporting frame 10 at the lower portion thereof. The lower support 7 isheld at the limit of its left hand movement against the action of thespring 30 byvineans of a pawl or dog 32 pivoted intermediate of its endsat 33 upon a suitable block 34 and urged into engagement with the righthand end of the support 7 by a coiled spring 35. The coiled spring 35 isinterposed between the outer portion of the pawl or dog and the main orsupporting frame and it is adapted to be depressed by an operating ortrip rod 36 arranged at an inclination tor-the vertical and mounted `inspaced The upper or inner'end of the operating or trip red 36 has anangularly disposedportion 39 inclined -to the vertical and located inwheel and the coacting the path of 'the eccentric projections '19 andadapted to be engaged by the same to move the rod 36 outwardly fordisengaging the pawl Ipr dog 32 from the lower slidable support The leftYhand end of the slidable support is engaged by a pawl or dog V40 whenthe said support is at the limit of its right hand movement and the saidpawl or dog40 when the said support is at the limit of 'its right handmovement and the said pawl or dog 40 is adapted to be lifted to releasethe support 7 by means of an approximately L shaped lever 41 fulcrumedat its angle at 42 and having the short arm arranged to lift the saidpawl or dog 40. The other arm of the L shaped lever eXtends upwardly andinwardly at an inclination to the vertical and is arranged to be engagedby a trip or operating lever 43 fulcrumed at an intermediate point at 44and arranged in substantially an upright position. The lower end of thelever 43 is arranged'to engage the L shaped lever and the upper end ofthe said lever 43 has an angularly disposed portion 45 inclined to thevertical and located in arranged projections 19. l Y

The eccentrically arranged projections 19 are located at substantiallydiametrically opposite points and they are adapted to engage 'the triprods and the trip levers to operate the dogs or pawls and liavealsocontacting with the inwardly extending arms 25 and 29 of the slidablesupports and move the saine against: the action of the coiled springs 23and 30. A reversal of the rack mechanism occurs at each quarter of arevolution Vof the master wheel, and a continuous reciprocation of thepumprods in opposite directions is effected. The mechanism is applicableto a single pump rod where only one set of employed. Each pump rod isprovided at a point between theY operating mechanism and the pump with abreak orjoint and is equipped with an air cushion 46 and a spring 47 tocushion and relieve the pump' cylinder 48 receiving a piston 49 mountedon the upper section of the pump rod and equipped with a suitablepacking 50. The cylinder is provided at its upper end with a head or endwall 51 having a central opening through which lpasses the upper sectionof the pump rod rand the said spring 4T which is sleeved on the uppersection of the pump rod and interposed between the cylinder end wall orhead 51 and the suitf able stop 52 carried by the upper section of thepump iodrand arranged in spaced relation with the cylinder. The cylinderis provided with an upperv guide 53 and lower con- `pinioiis will beverging arms 54; receiving the upper and lower sections el the pump rod.The u'iiper guiding means e3 are preferably :in the erm ci a yoke andthe lower arms 54C preferably consist of depending converging portionsot the cylinder and are suitably secured to the lower section of thepump rod.v The upper and lower sections of the pump rod are conrected bya chain 55 or other suitable flexible connection which permits limitedindependent movement of the sections to enable the cushioning Vdevicetol function. Y

Claims. Y

Y l. Pump operating mechanism including a reciprocatory member providedat opposite edges with racks, a master gear, pinions movable into andoutV of mesh with the ri clzs and the master gear and actuated by thelatter to reciprocate the said member, and means for operating the saidpinions 2. Pump operating mechanism including a pair otreciprocatorymembers provided at opposite sides With racks, pairs ot piii ionsadapted Vto alternately mesh with the racks to eiiect a. reciprocationoi the saidV members, a master gear located between theV pairs ofpinions and arranged to be engaged by the same when the pinions are inmesh with the pump rod and means for operating the pinions to carry thesame into and ontl VVpinions located at opposite sides ol the pump ofmesh With the racks and the master gear.

3. Pump operating mechanism including a pair of reeiprocatory membershaving racks at opposite sides, a master gear, a slidable support,pinions carried by the support and located at opposite sides of the saidmembers and means for actuating the support and carrying the pinionsalternately into and out oi mesh With the racks and the master gear.

et. Pump operating mechanism including a. reciprocatory member havingracks at opposite sides, a master gear, pinions located at oppositesides et the said member, a slidable support carrying the pinions andadapt` ed to move the same into and out of mesh rv ith the racks and themaster gear, means ior actuating the said support and means for lockingthe support against movement and for also tripping or releasing thesame.

5. Pump operating mechanism including a ieci} nocatory member havingracks at opa master gear, a shiltable supA posite sides,

iort, pinions carried by the support and movable into and out oi' meshwith the racks and the master gear, a spring :tor urging the f supportin one direction, means carried by the master gear for moving thesupport in the opposite direction and means for locking the support andVfor tripping or releasing Ythe same. y y

G. Pump operating mechanism including aV reciprocatory member havingracks at opposite sides, a master gear, arslidable sup-` port, pinionslocated at opposite sides oi theV master gear and carried by thesupport, the latter being adapted to move Vthe pinions into and out ofmesh with the master gear and the racks, yieldable means forautomatically urging the support in one direction, lugs carried by themaster Wheel for moving the support in the opposite direction, dogsarranged to hold the support against movement to retain the pinions inmesh and tripping devices located in the path of theV lugs and arrangedto move the dogs out of Vengagement to release the support.

8. Pump operating mechanism including a pair of reciprocatory pump rodshaving upper and lower racks, upper and lower rods, a master gearlocated between the upper and ,lower pinions, means for carrying thepinions alternately into and out ot mesh with the racks and the mastergear, means for automatically locking` the vpinions in mesh and meanscarried by the master gear for releasing the pinions.

9. Pump operating mechanism including a pair of reciprocatory pump rodshaving upper and lower racks arranged in pairs, upper and lower pinionsarranged in pairs Y and located at opposite sides of the pump V rods, amaster gear located between the pairs or pinions, upper and lowerslidable supf ports carrying the pinions, dogs located at the ends ofthe supports and adapted to en gage the same auton'iatically to retainthe pinions in mesh, a slidable operating` rod located at one end ofeach support and having means for moving the adjacent dogs out ofengagement with the support, a lever `located at the opposite end eleach support and having means for disengaging the adjacent dog from thesupport and means for operating the slidable rods and the leversincluding an eccentric lug carried by the master wheel.

l0. Pump operating mechanism including a reciprocating pump rod ormember having racks, a master gear, a support having air arm, pinionsmounted on the support and located at opposite sides of the pump rod ormember and movable into and out of mesh with the master gear and thesaid racks, a sprin'gconnected with the arm for moving the support inone direction and projecting lugs carried by the master Wheel andarranged at substantially diametrically opposite points to engage thearm for moving the support in the opposite direction.

11. Pump operating mechanism including a reciprocating pump rod havingracks at opposite sides, a master Wheel, a slidable support, pinionscarried by the support and movable into and out of mesh with the pumprod and the master Wheel, lugs carriedrby the master Wheel, an armextending from the support into the path of the lugs for effect'- ing amovement of the support in one direction, yieldable means for urging thesupport in the opposite direction, a paWl vor dog'for locking thesupport against movement and an operating device provided With means fordisengaging the pawl or dog and having an inclined or angularly disposedportion arranged to be engaged by the lugs prior to Copies of thispatent may be obtained for nve cents each, by addressing the -WshingtonJD. C." Y

the engagement'of the same With the Ysaid arm.

12. Pump operating mechanism including a reciprocating member havingracks at Vopposite sides, a slidable support, pinions carried by thesupport, a master gear arranged to mesh with the pinions When the sameare in engagement with the racks, lugs carried by the master Wheel,yieldable means for urging the support in one direction, means carriedby the support and extending into the path of the lugs for effecting amovement of the support in the opposite direction, a dog for holding thesupport against movement, an approximately L shaped lever arranged tomove the dog out of engagement and an operating or trip lever extendinginto the path of the lugs and arranged to actuate the said lever. Y

In testimony whereof I aliix my signature.

BRYN TE BRYNTESON. y

Commissioner of VIatencs,

